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Date:   Sat, 12 Feb 2022 12:32:05 -0700
From:   David Ahern <>
To:     Kalash Nainwal <>,
Cc:, "David S. Miller" <>,
        Hideaki YOSHIFUJI <>,
        David Ahern <>,
        Jakub Kicinski <>,
Subject: Re: [PATCH v2] Generate netlink notification when default IPv6 route
 preference changes

On 2/10/22 2:09 PM, Kalash Nainwal wrote:
>  Generate RTM_NEWROUTE netlink notification when the route preference
>  changes on an existing kernel generated default route in response to
>  RA messages. Currently netlink notifications are generated only when
>  this route is added or deleted but not when the route preference
>  changes, which can cause userspace routing application state to go
>  out of sync with kernel.
> Signed-off-by: Kalash Nainwal <>
> ---
>  net/ipv6/ndisc.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

Reviewed-by: David Ahern <>

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